This depends on the country you reside in, your car's charging capacity, and the charging station you're using.

The average electricity fee is about 10p per kWh in the UK (consumer rate). Let's say your electric car has an empty battery and approximately 30 kWh capacity. Depending on your driving style, your car should be able to reach approximately 60 to 80 km on a single charge. Charging your electric car would cost a total of 30 x 0.10 = £3.

Charging at an EVBox charging station
The charging station owner can set up her/his own charging fees. This may include a start rate, a time rate (rate per minute) and a kWh-rate. These rates will be visible to all EVBox charge card users. Surcharges apply to users that are using charge cards from other service providers. Each service provider can define its own upcharge. They are also allowed to make individual agreements with their own customers about their charging rates and charging plans. The charging point operator (which is in this case EVBox) does not have control over this agreement.